Car-truck.



PATENTBD DEC. 25, 1906.

G. G. FLOYD;

OAR TRUCK. 'APPLIOATION FILED SEPT. 24,1906.

GEORGE G. FLOYD, OF GRANITE, ILLINOIS, ASSIGNOR TO AMERICAN STEELFOUNDRIES, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY. Y

CAR-TRUCK.

Specification of Letters Patent.

Patented Dec. 25, 1906.

Application filed September 24, 1908- Serial No. 885.928.

To all whom it may concern:

Be it known that I, GEORGE G. FLOYD, a citizen of the United States,residim at Granite, in the county of Madison and State of Illinois, haveinvented certain new and useful Improvements in Car-Trucks, of which thefollowing is a specification.

My invention concerns car-trucks, especially those with cast-steel sideframes, and

its eat is the provision of side frames which will readily permit theremoval of the bolster. To this end 'I use a construction wherein thebolster does not extend through an aperture in each side frame as isusual, but instead the bolster terminates inside of a portion of theframe extending across its end, whereby the two side frames prevent anysubstantial lengthwise shifting of the bolster. Preferably the mainvertical late or web of the frame is bowed outward y more or less at itscentral part to receive the bolster between these bowed portions andprevent longitudinal movement thereof, suitable means also beingprovided for guiding the bolster in its dicated in dotted 'nes.

vertical adjustments due to different loads. In order to equalize thepressure thrust upon the side frame through the bolster-springs, Ipos'itionthe springs on each side of the vertical web or plate, the topspring-cap on which the bolster rests projectin through an aperture inthe plate provided or that purpose.

In the accompan ing drawings, which form a part of this spec' cation, Ihave illustrated the most desirable embodiment of my invention, and inthe various views of said drawings like reference characters refer tothe same parts throu hout'.

Figure 1 is a si e view of my improved cartruck side frame. Fig. 2 is atop plan view of the same, the s rings and bolsterbeing in- Fig. 3 is asection on line 3 3 of Fig. 1, the springs being indicated in dottedlines; and Fig. 4 is a section longitudinally of the bolster andtransversely of the side frame.

Each side frame of the car-truck includes a late or web 10, apertured at11 for a reducion of weight, the plate or web being bowed outwardlyslightly at its central portion, as is clearly indicated in Figs. 2 and3. The central lower portion of this member 10 is apertured at 12 forthe accommodation of the bolster-springs and sprin -cap, and the loweredge of web 10 is provi ed with a marginal flange 13, extended inopposite directions from the web, the flange bemg broadened at 14beneath the aperture 12 to form a comparatively wide s ring-seatdisposed on both sides of the we The sides of this aperture also haveflanges 15 and 16 projecting in oppositedirections from the web andextende to the top of the frame, which is supplied with the to marginalflange 17, having rearwardly exten ed ears 18 disposed just outside offlanges 15 and 16, the upper ends of the latter being widened, as shownin Fig. 4. Flange 17 projects from opposite sides of web 10 except atthat portion of the web over the opening 12 where the inner part of suchflange is omitted. The two side frames, which are alike, arecross-connected and tied together by angle-transoms 20, whose horizontallegs are riveted at 21 to the inwardly-projecting cars 17 and whosevertical legs are riveted at 22 to flan cs 15 and 16.

When t is parts of the truck are assembled, springs 23, of which fourare generally used for eachseat, are placed so that their lower endsrest upon the spring-seat 14 and are provided at their upper ends with aspringcap 25, having a bead or boss 26, a greater or less portion of thecap pro'ecting outwardly through opening 12, t e boss 26,

however, being inside of plate or web 10. Bolster 27, at its ends oradjacent thereto,

has a transverse recess or groove 28, adapted to rest in rib 26, therebytransmitting the weight of the car-body and attached parts through thesprings to the side frame. Lateral shifting of the bolster is preventedby the flanges 15 and 16, between which the end of the bolster fits, andlengthwise displacement of the bolster is revented by that portion ofthe web 10 a ove aperture 12 which lies just outside of the adjacent endof the bolster, as is clearly shown in Fig. 4.

By the emplo ment of a constructmn of this character t e bolster may bereadily separated from the side frames by merely lifting the same out ofthe pocket formed by web 10 and flanges 15 and 16, and the weight thrustupon the side frames is subing on each-seat, spring-caps for saidsprings, and a bolster disposed between said vertical plates and restingon said spring-caps, longi- -'tudinal'movement of said bolster beingprevented vb'y those portions of said plates across the ends of saidbolster, substantially as described.

2. Ina railway-car truck, the combination of aside frame having avertical plate provided with an aperture and a spring-seat at the bottomof said aperture extending on opposite sides of said plate, springsresting on said spri -seat, a spring-cap for said springs, and bolsterdisposed inside of said plate and resting on said cap, outwardlongitudinal movement of said bolster being prevented by that portion ofsaid plate extended across the end of said bolster, substantially asdescribed.

inside of said vertical plate having a recess or. socket resting on saidbead or lib, outward longitudinal shifting of said bolsterbeingprevented by the portion of said plate outside of the end ofthebolster, substantially as described. I

GEORGE G. FLOYD.

Witnesses FREDERICK C. GooDwIN, WALTER M. FULLER.

said aperture and

